Carbon-paper protector.



M. G. STERN.

CARBON PAPER PROTECTOR.

APPLICATION FILED JAN. 19, 1914.

Patented Sept. 15, 1914.

wummo fl I %%%WMA UNITED STATES PATENT OFFICE.

MILTON C. STERN, OF DAYTON, OHIO, ASSIGNOR TO THE EGRY REGISTER COMPANY,,

OF DAYTON, OHIO, A CORPORATION OF OHIO.

CARBON-PAPER PROTECTOR.

Specification of Letters Patent.

Patented Sept. 15, 1914.

To all whom it may concern Be it known that I, MILTON C. STERN, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Carbon-Paper Protectors, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to carbon paper protectors and is designed more particularly for use on autographic registers. As is well known, in registers of this character the webs of paper are fed over a writing table and the carbon sheets are interleaved between the webs.

one with the other and any projecting edges on the web are liable to engage the edge of the carbon sheet and tear or otherwise injure the same. These projecting edges may result from various causes, as by tearing the lateral edges of the web. A very frequent source of trouble is imperfect punching of the webs where these webs are punched to provide for the filing of the bills or the sheets after they have been detached from the web. It often happens that through the dullness of the punch or for other reasons the portion of the paper which is punched out is not completely severed from the web but remains attached thereto along a por tion of its edge. The other edge of this punched out portion being free is apt to be elevated or depressed above or below the surface of the web of paper and to catch over or under the edge of the carbon sheet as the web is fed forward.

The object of the present invention is to provide a protector which will prevent the carbon sheets from being injured by such projecting edges, and, to this end it is a further object of the invention to provide a protector which will either sever or fold over against the body of the web any such projecting edges, thereby preventing them from injuring the carbon sheets.

A further object of the invention is to provide such a rotector which can be quickly moved out of and into position to facilitate the placing in position of the webs of paper and carbon sheets; and further, to provide a protector which while possessing the nec essary strength and rigidity will not ofier The carbon sheets and I, the webs are superposed in close relation material resistance to or interference with the movement of the web of paper.

In the accompanying drawings, Figure 1 1s a plan view, partially broken away, of an autographic register embodying my invention; Fig. 2 is a transverse, sectional view, taken on the line mm of Fig. 1 and looking in the direction of the arrows; and Fig. 3 is a detail, sectional view showing the relation of the web protector and carbon sheet.

In these drawings I have illustrated the invention as embodied in an autcgraphic register of a well known form, it being understood that this form of device is chosen for the purpose of illustration only and that the invention is applicable to similar devices of various kinds. The register here shown comprises a frame having side members 1 and 2 which carry a supporting member, such as a writing table 3. \Vebs of paper, 4, are led over the supporting member or writing table from a suitable source of paper supply, preferably rolls of paper supported beneath the writing table but not here shown. Sheets or webs of transfer material, such as the usual carbon paper, are interleaved between the webs of paper, as shown at 5. In the present instance, the carbon paper is in the form of a web and is fed transversely between the webs of paper from a roll 6 supported at one side of the main frame and having its end portions or edges secured in position on the opposite side of the frame by means of a finger or swinging latch 7, which is pivoted at its forward end to the side member of the main frame and extends across the full width 'of the carbon sheets.

To fprotect the carbon sheets against injury rom edges projecting from the webs of paper I have arranged adjacent to the rear edge of the carbon sheets, that is, the edges which first come in contact with the web of paper, a protector which will engage the projecting edges before they reach the carbon sheets and either sever the projecting portions from the web or fold the same over against the body of the web in a position in which they will not injur'iously engage the carbon sheets. This protector may take various forms but I have here shown each protector as comprising a strip of thin, strong material, as shown at 8, which overlaps the rear edge of the adjacent carbon sheet and has its rear edge arranged in advance of the rear edge of the carbon sheet, that is, in position to engage the webs of paper lying above and below the same before these webs of paper engage the edge of the carbon sheet. In the present form of the device the structure is formed of thin strips of metal of a width sufficient to give the device rigidity along its rear edge and thus enable it to resist the forward movement of any projecting portions of the web of paper which may engage the same. By forming the device of metal I am able to secure the desired thinness without sacrificing strength but it will be obvious that other materials may be substituted for the metal without departing from the spirit of the invention. There is a protector strip for each carbon sheet and as will be understood there is a carbon sheet arranged between the adjacent surfaces of the several webs of aper. There may be any desired number 0 these webs but in the present instance I have shown three, which number requires two carbon sheets and two protecting strips. The protectors may be secured to the register in any suitable manner. In the present instance I have carried the ends of the strip downward on the opposite sides thereof and have permanently secured one end of each strip to one side of the register frame and have detachably secured the other end of each strip to the other side of the register frame, thereby enabling the strips to be released and moved out of the way when it is desired to thread up the register, that is, to place the webs of paper and carbon sheets in roper positions over the writing table. arious detachable devices may be used but in the present instance I have provided a stud 9 which rojects beyond the face of the side wall 1 of the register and have formed holes in the adjacent ends of the strips to extend over this stud. The stud is arranged in the path of the carbon holding bar or finger 7 and when this bar is in its operative position its inner face will engage the end of the stud 9 and the strips will be retained thereon, the bar itself being held in position by a spring catch, as shown at 10. I have also shown the forward edges of the protector strips as cut away at 11 to enable the ends thereof to be carried down alongside the edges of the carbon sheets and attached to the side members of the frame without interfering with the carbon sheets.

The operation of the device will be readily understood from the foregoing description and is made very plain by the detail view shown in Fig. 3 iii which the web of paper, 4, is shown as having a disk 12 artially punched out of the same and e ressed slightly below the lower surface of t e web of paper 4. The edge of this partially punched out portion of the web is in ongagement with the edge of the protector at a point in advance of the adjacent edge of the carbon sheet. The further movement of the web toward the left in Fig. 3 will cause this partially punched out portion or rojecting edge to be either severed from t e web or folded back against the body of the Web. In either instance it will cause no injury to the carbon sheet. Moreover, this projecting edge being carried by the web above the protector will be carried past the edge of the carbon sheet before it comes in contact with the latter and thus even though there should still be a slight roughness where the projecting portion is folded over it cannot engage the edge of the sheet and will not be of such a character as to injure the face of the carbon sheet.

While I have shown and described one embodiment of my invention and have shown this as applied to an autographic register of a well known construction it will be understood that the invention may be applied to devices of various kinds when one sheet of paper or similar material moves transversely to a second sheet of paper or the like and while it is in engagement with said second sheet; and that I do not wish to be limited to the details of construction for various modifications will occur to one skilled in the art. Further, it will be understood that the terms paper, transfer paper, carbon aper and the like are used as words of description and not of limitation, and that any materials having the same or similar functions and characteristics will be the full equivalents of the materials and parts described in the specification and claims.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a device of the character described, the combination, with a supporting table, a plurality of webs of paper extending over said table, and transfer paper interleaved between said webs, of a protector arranged near the point of initial contact between said webs and said transfer pa or to prevent projecting edges on said we s from injuring said transfer paper, and supported independently of said transfer paper.

2. In a device of the character described, 7

- said table, and transfer paper interleaved between said webs, of a strip of protectin material extending transversely to sai webs, overlapping the edge of said transfer paper and supported independently of said transfer paper.

5.v In a device of the character described, the combination, with a supporting table, a plurality of webs of aper extendin over said table, and trans er paper inter caved between said webs, of a strip of protecting material extending transversely to said webs, overlapping the edge of said transfer paper, and supported independently of said transfer paper, said strip of material having one edge arranged to engage rojecting arts of said Webs in advance of t e edge of sa'd transfer material. 7 v

6. In a device of .the' character described,- the combination, with a supporting table, a plurality-of webs of paper extending over said table, and transfer paper interleaved between said webs, of a Strip of protecting material extending between and transversely to said webs of paperadjacent to the edge of said transfer paper and supported independently of said transfer paper.

7. In a device of the character described, the combination, with a supporting tablepa plurality of webs of paper extending over; said table, and transfer paper interleaved,

between said webs, of a strip of pcrtecting material extending between and trans- .versely to said webs of paper adjacent to the edgeof. said transfer paper, and supported independently of said transfer paper and means for detachably su porting one end of said strip at one side 0 said webs.

8. 'In a device of the character described, the combination, with a supportin table, a

plurality of webs of paper exten mg over said table,'and transfer paper interleaved between said webs, of a strip of protecting material extending between and transversely to said webs of paper overlapping the edge of said carbon sheet, and supported independently of said carbon sheet the end of that portion of said strip which overlaps said carbonv sheet being cut away to permit said strip to extend downward alongside of the adjacent portions of said carbon pa er.

9. In a device of the character descri ed, the combination, with a main frame, a supporting table carried thereby, webs of paper extending over said su porting table, a carbon sheet interleaved tween said webs of paper, and a fastening device for said carbon sheet mounted on one side of said frame, of a protecting strip secured-at one end to one side of said frame and extending between and transversely to said .webs of aper, and a part cooperating with the astenin device for said carbon sheet to secure t e other end of said strip to the other side of said frame;

,In testimony whereof, I aflix my signature in presence of two witnesses,

' MILTON C. STERN.

Witnesses:

H. L. HAMMAKnn, F. W. SCHAEFER. 

